Humeroulnar joint

Definition

The humeroulnar joint is a hinge type of synovial joint located between the humerus (upper arm bone) and the ulna (one of the forearm bones), allowing for bending and straightening of the elbow. This joint plays a crucial role in the movement and stability of the arm.

Related terms

Synovial Joint: A type of joint that is surrounded by a fluid-filled capsule which helps in facilitating smooth movement between bones.

Humerus:

The long bone in the upper arm that articulates with both the ulna and radius at its distal end to form part of the elbow.

Ulna:

One of the two long bones within the forearm, positioned on the side opposite to the thumb, it forms part of the elbow joint and articulates with the humerus